Name: Vegan Leek Tart Recipe
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: Vegan
Ingredients: 1/2 cup raw cashews (soaked overnight); 1/2 cup water; 2 tbsp nutritional yeast; 1/2 tsp white vinegar; 2 tbsp vegan butter; 5 medium leeks (about 19 ounces / 540g); 1/4 tsp salt (adjust to taste); 1/8 tsp ground black pepper; 1 cup flour; 1/4 cup vegan butter (at room temperature); 2-3 tbsp water; 1/8 tsp salt

Jump to Recipe· 3.8 from 2 reviews

The Vegan Leek Tart Recipe is a delightful way to enjoy the subtle sweetness and creamy texture of leeks combined with a luscious cashew cream, all nestled in a perfectly flaky vegan crust. This dish strikes the ideal balance between comfort and elegance, making it perfect for cozy dinners or impressive gatherings. Whether you’re a seasoned vegan or just curious to try something new, this tart offers vibrant flavors and satisfying richness without any dairy or eggs.

Ingredients You’ll Need

A wooden cutting board on a white marbled surface holds a few ingredients. On the left side, four stalks of fresh celery with green tops and pale bottoms are laying close together. On the top right of the board, a small brown bowl is filled with whole cashew nuts that are light beige and smooth. Below that bowl is a small brown dish holding a thick square slice of creamy white butter. Next to the butter, a clear glass measuring cup with a wooden handle holds a little water. Below the butter, a small white bowl contains mixed black and white peppercorns. To the right of the pepper, a small green ceramic bowl is filled with white flour. Below this bowl, another small white bowl has crispy yellow flakes inside. A small wooden spoon filled with coarse white salt is placed next to it on the right side of the board. The scene is brightly lit with soft shadows and the photo taken with an iphone --ar 4:5 --v 7

The beauty of this Vegan Leek Tart Recipe lies in its simplicity. Each ingredient plays an essential role, from the buttery flaky crust that holds everything together, to the creamy cashew filling that showcases the natural goodness of leeks. Let’s dive into the ingredients that will make this tart unforgettable.

Raw cashews (1/2 cup): Soak overnight to create a silky cashew cream, the luscious base of the filling.

Water (1/2 cup plus 2-3 tbsp): Used to blend the cashews and knead the dough—helps with smooth texture and dough consistency.
Nutritional yeast (2 tbsp): Adds a subtle cheesy, nutty flavor that enhances the vegan creaminess.
White vinegar (1/2 tsp): A touch of acidity to brighten the cashew cream and balance flavors.

Vegan butter (1/4 cup plus 2 tbsp): Gives the crust its buttery, flaky texture and adds richness to the leek sauté.
Leeks (5 medium, about 19 ounces / 540g): The star vegetable, lending sweetness and depth to the filling.
Salt (1/4 tsp plus 1/8 tsp): Essential for seasoning and enhancing every flavor in both filling and crust.

Ground black pepper (1/8 tsp): Provides a gentle warmth to the filling.
Flour (1 cup): The foundation of the crust—use a good all-purpose flour for best results.

How to Make Vegan Leek Tart Recipe

Step 1: Prepare the Cashew Cream

Start by draining your soaked raw cashews and adding them to a high-speed blender with half a cup of water, nutritional yeast, and white vinegar. Blend until the mixture is completely smooth and creamy, about 30-45 seconds. This cashew cream will provide the luscious, velvety texture that ties the entire filling together. Set it aside for now.

Step 2: Slice and Clean the Leeks

Next, carefully slice each leek in half lengthwise. Rinse them thoroughly under cold water to wash away any dirt or grit hidden between the layers. Pat them dry and slice crosswise into half-inch thick rounds. The cleanliness here is key—you want tender, pure leek flavor without any grit.

Step 3: Sauté and Caramelize the Leeks

Heat 2 tablespoons of vegan butter in a large non-stick skillet over medium heat. Add the sliced leeks and a pinch of salt, then cook for about 10-12 minutes, stirring frequently to prevent sticking and encourage gentle browning. Once the leeks are soft, let them caramelize for an additional 2-3 minutes until lightly golden and fragrant. This step enhances their natural sweetness, making the filling incredibly flavorful.

Step 4: Combine Leeks and Cashew Cream

Remove the skillet from heat and pour in the cashew cream. Toss everything together to coat the leeks evenly, then season with salt and pepper to taste. Give it a good stir and adjust seasonings—you want the filling to be rich and balanced. Set this delicious mixture aside while you prepare the crust.

Step 5: Make the Pie Crust

Preheat your oven to 355°F (180°C). In a bowl, combine the flour, 1/4 cup vegan butter (at room temperature), salt, and 2-3 tablespoons of water. Knead gently for about 2 minutes until the dough forms a firm but smooth ball. If the dough feels too dry, add more water a tablespoon at a time. Flatten your dough ball into a thick disc.

Step 6: Shape and Bake the Crust

On a floured surface, roll or flatten the dough to about ¼-inch thickness. Lightly grease an 8-inch tart pan with vegan butter. Gently press the dough into the tart pan, trimming off any excess. Use a fork to prick the bottom of the crust, which prevents bubbles during baking. Spread the leek and cashew filling evenly over the crust. Bake your tart for 30-35 minutes until the crust is beautifully golden brown. Let it cool slightly before serving.

How to Serve Vegan Leek Tart Recipe

A golden brown quiche with a thick crust sits on a white plate, showing a textured top layer filled with small pieces of browned vegetables and cheese in shades of orange, light yellow, and green. The crust is crimped around the edges, lighter golden than the filling, and the filling has a slightly crispy, uneven surface with bits of green onions mixed throughout. The quiche rests on a white marbled surface with a green cloth near the bottom right corner, a knife with a wooden handle at the bottom left, and some fresh green herbs and onions blurred in the background. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of fresh chopped herbs like parsley or chives can add a pop of color and fresh flavor to your tart, while a few cracked black pepper grains on top emphasize its subtle heat. Toasted pine nuts or pumpkin seeds offer a delightful crunch if you want an extra texture contrast.

Side Dishes

This Vegan Leek Tart Recipe pairs wonderfully with a crisp green salad dressed lightly with lemon vinaigrette. Roasted root vegetables or a simple tomato and cucumber salad complement the creaminess of the tart and keep your meal balanced and bright.

Creative Ways to Present

Try serving individual tartlets for a chic brunch or appetizer spread. Alternatively, slice the tart into neat squares for a buffet or picnic. Drizzle a little extra virgin olive oil or a balsamic reduction over the top for a gourmet touch that impresses guests every time.

Make Ahead and Storage

Storing Leftovers

You can keep any leftover Vegan Leek Tart Recipe fresh in the refrigerator for up to five days. Store it in an airtight container to maintain the flaky crust and creamy filling. It’s a fantastic option for meal prep or quick lunches during the week.

Freezing

To freeze, wrap the tart tightly in plastic wrap and then in aluminum foil to avoid freezer burn. Frozen, this tart will stay at its best quality for about 1-2 months. When you’re ready, thaw overnight in the fridge before reheating.

Reheating

Reheat slices in a preheated oven at 350°F (175°C) for 10-15 minutes to revive that flaky crust, or gently warm individual pieces in the microwave if you’re in a hurry. Avoid overheating to keep the texture perfect and avoid drying out the filling.

FAQs

Can I use a different nut instead of cashews for the cream?

Cashews are ideal because they blend into an exceptionally smooth, creamy texture without bitterness. While you could experiment with soaked almonds or sunflower seeds, cashews will give you the best silky results for this Vegan Leek Tart Recipe.

What if I can’t find fresh leeks?

Fresh leeks contribute the essential mild onion flavor and texture here. If unavailable, substitute with a mix of finely sliced onions and garlic—but be sure to adjust cooking times and seasoning accordingly to maintain the delicate balance of the dish.

Is the crust gluten-free?

The crust uses regular all-purpose flour, so it is not gluten-free. You could try gluten-free flour blends, but the texture might differ. Experimentation with binding agents and hydration may be needed to replicate the perfect crust for the Vegan Leek Tart Recipe.

Can I make this tart ahead of time for a party?

Absolutely! You can prepare the filling and dough in advance, refrigerate them separately, then assemble and bake the tart the day of your event. This makes entertaining much easier and stress-free.

How can I add more protein to this recipe?

Adding a handful of cooked lentils or chickpeas to the leek filling can boost protein content without sacrificing flavor. Alternatively, sprinkle hemp seeds or toasted nuts on top after baking for a protein-packed crunch.

Final Thoughts

This Vegan Leek Tart Recipe is a true crowd-pleaser that marries simple, wholesome ingredients with rich, comforting textures. It’s approachable enough for a weeknight but impressive enough for guests, making it a staple recipe to save and share. Give it a try—you’ll quickly discover why it’s a favorite that everyone will want on their table.